LOL, try any decent history of WWII. The Jap’s didn’t even bother drafting a declaration of war until AFTER their treacherous attack. Their ambassador was still accredited to the US and had been, right up the last, involved in negotiations. On December 1st, Foreign Minister Togo cabled Washington Ambassador Nomura to continue negotiations “to prevent the U.S. from becoming unduly suspicious.”
It was a treacherous, sneak attack by a barbarous foe. You defend that evil. Yuck.